Description
Util/difflog.pl in zsh 4.3.4 allows local users to overwrite arbitrary files via a symlink attack on temporary files.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | zsh | 4.3.4-dev-3-2 | — |
| Debian 13 | zsh | 4.3.4-dev-3-2 | — |
| Debian 12 | zsh | 4.3.4-dev-3-2 | — |
References
- 42481 vdb-entry
- [zsh-workers] 20071203 Re: difflog.pl and "security" mailing-list
- [zsh-workers] 20071202 difflog.pl and "security" mailing-list
- https://bugs.gentoo.org/show_bug.cgi?id=201022
- 26674 vdb-entry
- zsh-difflog-symlink(38812) vdb-entry
- [zsh-workers] 20071203 Re: difflog.pl and "security" mailing-list
- 27899 third-party-advisory